diff --git a/home.nix b/home.nix
index 24bfe26..8c71518 100644
--- a/home.nix
+++ b/home.nix
@@ -70,6 +70,7 @@ in {
       ".config/fish/completions/systemctl.fish".source =
         ./scripts/systemctl.fish;
       ".config/fish/functions/kbl.fish".source = ./scripts/kbl.fish;
+      ".config/fish/functions/mkdcd.fish".source = ./scripts/mkdcd.fish;
       ".config/i3status/config".text = ''
         # i3status configuration file.
         # see "man i3status" for documentation.
diff --git a/scripts/mkdcd.fish b/scripts/mkdcd.fish
new file mode 100644
index 0000000..21ae7f8
--- /dev/null
+++ b/scripts/mkdcd.fish
@@ -0,0 +1,4 @@
+function mkdcd -a target
+  mkdir $target
+  cd $target
+end